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bq24741,BQ24742,pdf(Li-Ion or

消耗积分:10 | 格式:rar | 大小:1383 | 2010-11-05

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The bq24741/2 is a high-efficiency, synchronous battery charger with integrated compensation, offering low component count for space-constrained Li-ion or Li-polymer battery charging applications. Ratiometric charge current and voltage programming allows high regulation accuracies, and can be either hardwired with resistors or programmed by the system power-management microcontroller using a DAC or GPIOs.

The bq24741/2 charges two, three, or four series Li+ cells, supporting up to 10 A of charge current, and is available in a 28-pin, 5x5-mm2 thin QFN package.

The bq24741/2 features resistor-programmable PWM switching frequency and accurate 150mA trickle charge (with 20 m sensing resistor), which can be enabled via the TRICKLE pin.

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